shear pin

noun

an easily replaceable pin inserted in a machine at a critical point and designed to shear and stop the machine if the load becomes too great

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a granular metamorphic rock.
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Words nearby shear pin

shealing, shear, shear force, shear legs, shear modulus, shear pin, shear strain, shear strength, shear stress, shear stud, shear transformation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012